Karel Horák (Jan Hartl) and Božena Horáková (Veronika Žilková) are a childless couple and for medical reasons are doomed to remain so. While on vacation with their neighbors at a house in the country, Karel decides to buy the house at the suggestion of his neighbor. When he is fixing up the house, he digs up a tree stump that looks vaguely like a baby. He spends the rest of the evening cleaning it up and then presents it to his wife. She names the stump Otík and starts to treat it like a real baby. She then works out a plan to fake her pregnancy and becoming more and more impatient she speeds up the process and 'gives birth' one month early.